5 Series E34 525ix (M50) SAL
If the measured value has now dropped by less than 0.5 bar, the following faults may be present:
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Fault in delivery lines
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Fault in in-tank delivery hose
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Faulty pressure-holding non-return valve in fuel pump
Check components. Replace faulty components.
If the measured value has again dropped by more than 0.5 bar:
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Replace pressure regulator
Note:
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All the fuel hoses and hose clips which were detached within the framework of the checks must be replaced.
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Fault messages may be stored in the fault memory of the DME control unit if the vehicle is operated in the
intervening period. The fault messages "Incorrect lambda control" or "Lambda control at stop" must be cleared
after the check is completed:
Interrogate fault memory of DME control unit. Check stored fault messages. Rectify faults. Now clear the fault
memory.
RA Notes on fuel pressure check (reference pressure: intake manifold pressure)
BMW AG - TIS
21.01.2013 20:45
Issue status (12/2007) Valid only until next DVD is issued
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